Turn into a vase: Press A + L + R in two player
mode to turn into a vase that orbits around the other player.
This can be used to play the levels without hurting your partner.
Alternate costume: Hold Attack when changing characters to get
a different color.
Hidden Boss and alternate ending: Collect all forty four Cat Statues. Note: Twenty of
them are hidden in the Overworld and there are four more in each
stage.
